IPv4 R&E Routing Table Report 21:10 GMT Tue 15 Jul, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 986771 Prefixes after maximum aggregation (per Origin AS): 383002 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486385 Number of IPv4 prefixes with a valid ROA: 554644 Number of IPv4 prefixes with an invalid ROA: 143 Number of IPv4 prefixes with no ROA: 431984 Total ASes present in the Internet Routing Table: 76970 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65910 Origin ASes announcing only one prefix: 26906 Transit ASes present in the Internet Routing Table: 11060 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 7438) 33 Prefixes from unregistered ASNs in the Routing Table: 1113 Number of instances of unregistered ASNs: 1149 Number of 32-bit ASNs allocated by the RIRs: 46832 Number of 32-bit ASNs visible in the Routing Table: 38549 Prefixes from 32-bit ASNs in the Routing Table: 205182 Number of bogon 32-bit ASNs visible in the Routing Table: 99 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 476 Number of addresses announced to Internet: 3106043392 Equivalent to 185 /8s, 34 /16s and 118 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 322287 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261042 Total APNIC prefixes after maximum aggregation: 77873 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 251947 Unique aggregates announced from the APNIC address blocks: 105153 APNIC Region origin ASes present in the Internet Routing Table: 14701 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4494 APNIC Region transit ASes present in the Internet Routing Table: 1982 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10239 Number of APNIC addresses announced to Internet: 749126144 Equivalent to 44 /8s, 166 /16s and 194 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 290872 Total ARIN prefixes after maximum aggregation: 132013 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 292852 Unique aggregates announced from the ARIN address blocks: 140836 ARIN Region origin ASes present in the Internet Routing Table: 19208 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7023 ARIN Region transit ASes present in the Internet Routing Table: 1992 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5248 Number of ARIN addresses announced to Internet: 1349428224 Equivalent to 80 /8s, 110 /16s and 164 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 276415 Total RIPE prefixes after maximum aggregation: 135870 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275282 Unique aggregates announced from the RIPE address blocks: 176968 RIPE Region origin ASes present in the Internet Routing Table: 28936 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12046 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12548 Number of RIPE addresses announced to Internet: 731524352 Equivalent to 43 /8s, 154 /16s and 45 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124058 Total LACNIC prefixes after maximum aggregation: 29756 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120393 Unique aggregates announced from the LACNIC address blocks: 49150 LACNIC Region origin ASes present in the Internet Routing Table: 11267 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2532 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9229 Number of LACNIC addresses announced to Internet: 171010304 Equivalent to 10 /8s, 49 /16s and 105 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 33271 Total AfriNIC prefixes after maximum aggregation: 6740 AfriNIC Deaggregation factor: 4.94 Prefixes being announced from the AfriNIC address blocks: 45820 Unique aggregates announced from the AfriNIC address blocks: 13853 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 23.86 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1285 Number of AfriNIC addresses announced to Internet: 104694272 Equivalent to 6 /8s, 61 /16s and 130 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 11817 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6145 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4392 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3913 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3700 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2649 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2185 434 193 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13667 40960 5272 AMAZON-02, US 11492 4789 317 607 CABLEONE, US 7155 3856 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3473 8770 855 COGENT-174, US 22773 3342 3032 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 396982 3194 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 3065 1298 2228 AKAMAI-AS, US 4155 2859 217 1730 USDA-1, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7637 1713 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4070 3395 127 AKAMAI-ASN1, NL 9009 3771 358 2094 M247, RO 12389 3117 2317 873 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 582 TELLCOM-AS, TR 212238 2325 165 1695 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1558 1852 14 TE-AS TE-AS, EG 203020 1475 164 648 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12303 3255 573 UNINET, MX 10620 3513 481 1023 Telmex Colombia S.A., CO 13999 2525 511 349 Mega Cable, S.A. de C.V., MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 786 204 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 11664 1192 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1065 71 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1685 633 33 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1205 1477 332 ETISALAT-MISR, EG 36935 822 520 43 Vodafone-, EG 37069 702 1112 11 MOBINIL, EG 24863 656 389 22 LINKdotNET-AS, EG 36914 570 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 532 56 54 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13667 40960 5272 AMAZON-02, US 8151 12303 3255 573 UNINET, MX 9808 11817 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7637 1713 150 UNI2-AS, ES 7545 6145 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4789 317 607 CABLEONE, US 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4392 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4070 3395 127 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12303 11730 UNINET, MX 9808 11817 11701 CHINAMOBILE-CN China Mobile Communications Grou 12479 7637 7487 UNI2-AS, ES 7545 6145 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4453 4428 FPT-AS-AP FPT Telecom Company, VN 11492 4789 4182 CABLEONE, US 9498 4392 4081 BBIL-AP BHARTI Airtel Ltd., IN 20940 4070 3943 AKAMAI-ASN1, NL 7552 3913 3886 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:298 /13:582 /14:1209 /15:2139 /16:13755 /17:8220 /18:13490 /19:24473 /20:43577 /21:51641 /22:111223 /23:102762 /24:613238 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6572 7637 UNI2-AS, ES 8151 6528 12303 UNINET, MX 11492 3583 4789 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2815 3856 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 13667 AMAZON-02, US 30036 2268 2609 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2200 3513 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2396 2:1528 3:852 4:10 5:4737 6:163 7:6 8:1555 9:1 11:172 12:1339 13:455 14:2554 15:366 16:286 17:383 18:894 20:556 21:4 22:188 23:7729 24:2724 25:2 27:2816 29:19 31:3334 32:35 33:1 34:80 35:259 36:3527 37:4567 38:9379 39:909 40:253 41:4146 42:1950 43:2677 44:372 45:18490 46:5097 47:337 49:1885 50:1944 51:591 52:1554 54:324 55:1108 56:11 57:272 58:2188 59:1227 60:1174 61:2789 62:2943 63:1797 64:5528 65:2049 66:4721 67:3100 68:1086 69:3896 70:1044 71:631 72:2851 74:2790 75:1507 76:607 77:2764 78:1919 79:1707 80:2200 81:2075 82:3179 83:1439 84:1890 85:3465 86:1083 87:2140 88:1347 89:4420 90:776 91:8415 92:2750 93:2947 94:4073 95:4437 96:1470 97:310 98:954 99:700 100:72 101:1179 102:3896 103:32258 104:5280 105:742 106:968 107:2633 108:1254 109:4160 110:2231 111:3286 112:2217 113:1837 114:1956 115:2251 116:2065 117:2575 118:2987 119:1904 120:2119 121:1331 122:2787 123:2242 124:1635 125:2876 126:91 128:1614 129:964 130:1304 131:2042 132:776 133:450 134:1580 135:350 136:1426 137:1322 138:2756 139:1585 140:1636 141:1522 142:1906 143:1985 144:1186 145:559 146:2177 147:2102 148:2702 149:2936 150:1231 151:2223 152:2080 153:592 154:7518 155:1834 156:3028 157:1938 158:1342 159:2508 160:3624 161:1862 162:3866 163:2241 164:1866 165:2104 166:1518 167:2020 168:3983 169:783 170:5116 171:1003 172:4432 173:3382 174:917 175:1320 176:3719 177:4719 178:3943 179:2302 180:2613 181:4083 182:3500 183:2138 184:2086 185:21565 186:5203 187:4630 188:4257 189:4326 190:9550 191:1479 192:11338 193:9468 194:7773 195:5582 196:3280 197:3136 198:6212 199:8568 200:8233 201:6351 202:10378 203:10634 204:4613 205:3662 206:4532 207:3617 208:4286 209:5169 210:4622 211:2590 212:4549 213:3809 214:1021 215:46 216:6775 217:3186 218:1364 219:393 220:2138 221:1187 222:712 223:2633 End of report